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7074372640 = 25544214829
BaseRepresentation
bin1101001011010101…
…00101110000100000
3200021000200100212111
412211222211300200
5103442014411030
63125552205104
7340211114056
oct64552456040
920230610774
107074372640
113000331965
121455239794
13889845b1a
144b179a1d6
152b610a62a
hex1a5aa5c20

7074372640 has 24 divisors (see below), whose sum is σ = 16713205740. Its totient is φ = 2829748992.

The previous prime is 7074372623. The next prime is 7074372667. The reversal of 7074372640 is 462734707.

It can be written as a sum of positive squares in 2 ways, for example, as 6758812944 + 315559696 = 82212^2 + 17764^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 7074372593 and 7074372602.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22107255 + ... + 22107574.

Almost surely, 27074372640 is an apocalyptic number.

It is an amenable number.

7074372640 is an abundant number, since it is smaller than the sum of its proper divisors (9638833100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7074372640 is a wasteful number, since it uses less digits than its factorization.

7074372640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44214844 (or 44214836 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 40.

The square root of 7074372640 is about 84109.2898555207. The cubic root of 7074372640 is about 1919.6820798838.

The spelling of 7074372640 in words is "seven billion, seventy-four million, three hundred seventy-two thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 44214829 88429658 176859316 221074145 353718632 442148290 707437264 884296580 1414874528 1768593160 3537186320 7074372640